Home / 65,720.64-98,651.13-28,299.24

Finding the Fourth Proportional to 65,720.64, 98,651.13 and 28,299.24

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Solution

The fourth proportional to 65,720.64, 98,651.13 and 28,299.24 is: 42,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720.64 : 98,651.13 = 28,299.24 : x
  2. Step 2: Convert to fraction form
    65,720.64/98,651.13 = 28,299.24/x
  3. Step 3: Cross multiply
    65,720.64x = 98,651.13 × 28,299.24
  4. Step 4: Simplify right side
    65,720.64x = 2,791,752,004.14
  5. Step 5: Solve for x
    x = 2,791,752,004.14/65,720.64
  6. Step 6: Final answer
    x = 42,479.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.